Computer Accuracy Accuracy of measurement in navigation depends very much on the situation. If a sailor’s target is an island 200 km wide, sailing off center by 10 or 20 km is not a major problem. But, if the island were only 1 km wide, it would be missed if off just the smallest bit. Many of the measurements made while navigating involve angles, and a small error in the angle can translate to a much larger error in position when traveling long distances.Author(s): Integrated Teaching and Learning Program,

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Engineering for the Earth Young students are introduced to the complex systems of the Earth through numerous lessons on the Earth’s natural resources, processes, weather, climate and landforms. Key earth science topics include rocks, soils and minerals, water and natural resources, weather patterns and climatic regions, wind, erosion, landforms, and the harvesting of fossil fuels — all presented from an engineering point-of-view. (See the Unit Overview section for a list of topics by lesson.) Through many hands-on acAuthor(s): Integrated Teaching and Learning Program,

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The case studies in this unit introduce various typologies of heritage and the methods used to study them. The case studies help to draw attention to the fact that the heritage traditions in England, Scotland and Wales are not the same and are enshrined in slightly different legislation. Every study of heritage requires an understanding of the legal context and the traditions and history governing the object of heritage.

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Cinco de Mayo Foods: Mole Poblano In this Holiday Foods video clip, go on an epic journey with host Famous Fat Dave. Join him as he tries to unlock the mystery of Cinco de Mayo's most unusual food Mole Poblano. (03:01)Author(s): No creator set

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7.5 More revision questions Hearing is a familiar and important human sense that is a topic naturally of interest to those who are curious about human biology. This unit will enable you to relate what you read to your own sensory experiences – and indeed many of the questions asked have exactly that function. This unit will be best understood by those with some biological understanding.Author(s): The Open University

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This unit will help you to understand how major art collections are brought together over long periods of time and why particular pieces gain notoriety.

This material is from our archive and is an adapted extract from Art and its histories (A216) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in this Author(s):

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Grateful acknowledgement and thanks are made to Michael Schmidt, OBE, FRSL, Carcanet

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Beginner S5 #24 - Latin American Wardrobe Malfunctions Learn Spanish with SpanishPod101.com! When you come home from your shopping trips, you’re always happy with what you purchased, but you never hear the end of it from your significant other. The shirt is too tight, the tie is too loud, the pants are too short—complaint after complaint in Spanish is all you hear. This [...]Author(s): SpanishPod101.com

Sorley Maclean (1911–1998) is now regarded as one of the greatest Scottish poets of the twentieth century. However, until the 1970s, his verse was known by very few people. In that decade, publication of English translations of his work and the impact of his public readings established him in the eyes of poetry lovers in Scotland, Ireland and England, as well as further afield, as a major poet.

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This unit introduces key terms that are essential for understanding the Classical Roman world.

This material is from our archive and is an adapted extract from Culture, identity and power in the Roman empire (AA309) which is no longer taught by The Open University. If you want to study formally with us, you may wish to explore other courses we offer in this subject area

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